CONSERVATION PRACTICES FOR TOBACCO LANDS 7 



the State experiment stations, carried out the studies on a large num- 

 ber of farmer-operated fields. These fields represented a wide variety 

 of conditions under which tobacco was being grown. Land slopes 













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Figure 4. — A, Monthly distribution of high-intensity rains which lasted for 15 

 minutes or more as related to tobacco-growing seasons. B, Rainfall, runoff and 

 soil loss by months at Raleigh, N. C, 1941-43. These experiments were on 

 land protected over winter by cover crops, and the row grades ranged from con- 

 tour to 30 inches per 100 feet. 

 794117°— 48 2 



